中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

952 records (took 0.039 seconds)

    Multi-wavelength, multimode optical fibers
    152.
    发明申请
    Multi-wavelength, multimode optical fibers 有权
    多波长多模光纤

    公开(公告)号：US20080050075A1

    公开(公告)日：2008-02-28

    申请号：US11511174

    申请日：2006-08-28

    Applicant: James William Fleming ,  George Edward Oulundsen

    Inventor： James William Fleming ,  George Edward Oulundsen

    IPC: G02B6/02

    CPC classification number: G02B6/03627 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2203/26 ,  C03C13/046 ,  G02B6/0288

    Abstract: A silicate optical fiber comprises a graded index silicate core co-doped with aluminum oxide, phosphorus oxide, germanium oxide and fluorine in unique compositions that we have discovered allow multimode, multi-wavelength operation without significant intermodal dispersion. Illustratively, the core comprises a multiplicity of compositions whose refractive indices are graded from a maximum at or near the center of the core to a minimum at the interface with the cladding. Each core composition resides within a sub-volume of a 5 dimensional phase space in which an optimum core profile shape is essentially constant over the wavelength range of operation of the fiber. For operation in the wavelength range of about 0.78 μm to 1.55 μm, each composition preferably comprises no more than approximately 6 mole % Al2O3, 9 mole % P2O5, 6 mole % GeO2, 6 mole % F, and 90-100 mole % SiO2.

    Abstract translation: 硅酸盐光纤包括与氧化铝，氧化磷，氧化锗和氟共掺杂的分级指数硅酸盐芯，其独特的组成，我们发现允许多模多波长操作，而没有显着的联合分散。 说明性地，芯包括多个组合物，其折射率从芯的中心处或附近的最大值到与包层的界面处最小。 每个核心组合物位于5维相位空间的子体积中，其中最佳核心轮廓形状在光纤的操作的波长范围上基本上是恒定的。 为了在约0.78μm至1.55μm的波长范围内操作，每个组合物优选包含不超过约6摩尔％的Al 2 O 3 N 3，9摩尔％P

    Method of fabricating optical fiber or optical device doped with reduced metal ion and/or rare earth ion
    153.
    发明申请
    Method of fabricating optical fiber or optical device doped with reduced metal ion and/or rare earth ion 有权
    掺杂有还原金属离子和/或稀土离子的光纤或光学器件的制造方法

    公开(公告)号：US20070289333A1

    公开(公告)日：2007-12-20

    申请号：US11895737

    申请日：2007-08-27

    Applicant: Won-Taek Han ,  Yune-Hyoun Kim ,  Tae-Jung Ahn

    Inventor： Won-Taek Han ,  Yune-Hyoun Kim ,  Tae-Jung Ahn

    IPC: C03B37/018

    CPC classification number: C03B37/01838 ,  C03B37/01433 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/42 ,  C03C13/046 ,  C03C25/601

    Abstract: Disclosed is a method of fabricating an optical fiber or an optical device doped with d metal ion and/or rare earth ion, comprising steps of: forming a partially-sintered fine re in a base material for fabricating the optical fiber or the optical device; soaking the fine re into a doping solution containing a reducing agent together with metal ion and rare on during a selected time; drying the fine structure in which the metal ion and/or rare ion soaked; and heating the fine structure such that the fine structure is sintered.

    Abstract translation: 公开了一种制造光纤或掺杂有d金属离子和/或稀土离子的光学器件的方法，包括以下步骤：在用于制造光纤或光学器件的基底材料中形成部分烧结的细小残留物; 在选定的时间内，将微细浸渍在含有还原剂的掺杂溶液中与金属离子一起稀少; 干燥其中金属离子和/或稀有离子浸泡的细结构; 并加热精细结构，使得精细结构烧结。

    Glass-body-producing method and optical glass body and optical fiber
    155.
    发明授权
    Glass-body-producing method and optical glass body and optical fiber 有权
    玻璃体制造方法和光学玻璃体和光纤

    公开(公告)号：US07130513B2

    公开(公告)日：2006-10-31

    申请号：US11141203

    申请日：2005-06-01

    Applicant: Tetsuya Haruna ,  Shinji Ishikawa ,  Toshiki Taru ,  Tetsutarou Katayama ,  Nobuyuki Taira

    Inventor： Tetsuya Haruna ,  Shinji Ishikawa ,  Toshiki Taru ,  Tetsutarou Katayama ,  Nobuyuki Taira

    IPC: G02B6/02

    CPC classification number: C03B37/01807 ,  C03B37/01876 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/22 ,  C03B2207/90

    Abstract: A method produces a glass body that contains a reduced amount of OH groups in the metallic-oxide-containing glass layer and that has a reduced amount of transmission loss due to OH groups when the glass body is transformed into an optical fiber. The production method produces an optical glass body. An optical fiber contains the optical glass body in at least one part of its region for guiding a lightwave. The production method includes the following steps: (a) introducing into a glass pipe a gas containing an organometallic compound and a glass-forming material; (b) decomposing the organometallic compound into an organic constituent and a metallic constituent; (c) heating and oxidizing the metallic constituent so that produced glass particles containing a metallic oxide are deposited on the inner surface of the glass pipe to form a glass-particle-deposited layer; and (d) consolidating the deposited layer to form a metallic-oxide-containing glass layer.

    Abstract translation: 一种方法产生玻璃体，其在含金属氧化物的玻璃层中含有少量的OH基团，并且当玻璃体转变成光纤时，其具有由OH基导致的传输损失量减少的玻璃体。 该制造方法产生光学玻璃体。 光纤在其区域的至少一部分中包含用于引导光波的光学玻璃体。 制造方法包括以下步骤：（a）向玻璃管内导入含有有机金属化合物和玻璃形成材料的气体; （b）将有机金属化合物分解成有机成分和金属成分; （c）加热和氧化金属成分，使得在玻璃管的内表面上沉积含有金属氧化物的玻璃颗粒，形成玻璃颗粒沉积层; 和（d）固化沉积层以形成含金属氧化物的玻璃层。

    Optical fiber
    156.
    发明授权
    Optical fiber 有权
    光纤

    公开(公告)号：US07116887B2

    公开(公告)日：2006-10-03

    申请号：US10619376

    申请日：2003-07-11

    Applicant: Julia A. Farroni ,  Adrian Carter ,  Kanishka Tankala

    Inventor： Julia A. Farroni ,  Adrian Carter ,  Kanishka Tankala

    IPC: G02B6/17

    CPC classification number: G02B6/02114 ,  C03B37/01217 ,  C03B37/01231 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/42 ,  C03B2203/23 ,  C03B2203/31 ,  G02B6/024

    Abstract: An optical fiber comprises a photosensitive core that includes a concentration of a first material that increases the refractive index of the core and a concentration of a second material that is other than boron and that reduces the refractive index of the core. A cladding is disposed about the core for tending to confine light to the core. The fiber also includes at least one longitudinally extending region having a thermal coefficient of expansion that is different from the thermal coefficient of expansion of the cladding. In another embodiment, the core includes a concentration of germanium and a concentration of boron. Also disclosed is a polarization-maintaining double-clad (PM DC) fiber comprising one or both of at least one circular axially extending stress inducing region(s) and an inner cladding comprising a circular outer perimeter. Fibers according to the invention can include a rare earth dopant for emitting light of a selected wavelength responsive to being pumped by pump light of a pump wavelength that is different than the selected wavelength.

    Abstract translation: 光纤包括感光芯，其包括提高芯的折射率的第一材料的浓度和不同于硼的第二材料的浓度，并降低芯的折射率。 围绕芯部布置包层以倾向于将光限制在芯部上。 纤维还包括具有不同于包层的热膨胀系数的热膨胀系数的至少一个纵向延伸区域。 在另一个实施方案中，芯包括锗的浓度和硼的浓度。 还公开了一种包括至少一个圆形轴向延伸的应力诱导区域和包含圆形外周边的内包层中的一个或两个的偏振保持双包层（PMDC）光纤。 根据本发明的纤维可以包括用于发射选定波长的光的稀土掺杂剂，其响应于通过不同于所选波长的泵浦波长的泵浦光泵浦。

    Use of amorphous carbon film as a hardmask in the fabrication of optical waveguides
    158.
    发明申请
    Use of amorphous carbon film as a hardmask in the fabrication of optical waveguides 失效
    在制造光波导中使用无定形碳膜作为硬掩模

    公开(公告)号：US20050199013A1

    公开(公告)日：2005-09-15

    申请号：US10799147

    申请日：2004-03-12

    Applicant: Laurent Vandroux ,  Herve Monchoix

    Inventor： Laurent Vandroux ,  Herve Monchoix

    IPC: C03B37/018

    CPC classification number: C03B19/143 ,  C03B19/1469 ,  C03B2201/10 ,  C03B2201/24 ,  C03B2201/28 ,  C03B2201/31 ,  Y02P40/57

    Abstract: Methods are provided for forming optical devices, such as waveguides, with minimal defect formation. In one aspect, the invention provides a method for forming a waveguide structure on a substrate surface including forming a cladding layer on the substrate surface, forming a core layer on the cladding layer, depositing an amorphous carbon hardmask on the core layer, forming a patterned photoresist layer on the amorphous carbon hardmask, etching the amorphous carbon hardmask, and etching the core material.

    Abstract translation: 提供了用于形成具有最小缺陷形成的光学器件（例如波导）的方法。 一方面，本发明提供了一种在基板表面上形成波导结构的方法，包括在基板表面上形成包覆层，在包层上形成芯层，在芯层上沉积无定形碳硬掩模，形成图案化 无定形碳硬掩模上的光致抗蚀剂层，蚀刻无定形碳硬掩模，并蚀刻芯材。

    PROCESS OF MAKING RARE EARTH DOPED OPTICAL FIBRE
    159.
    发明申请
    PROCESS OF MAKING RARE EARTH DOPED OPTICAL FIBRE 有权
    制造稀土光纤光纤的工艺

    公开(公告)号：US20040187524A1

    公开(公告)日：2004-09-30

    申请号：US09982946

    申请日：2001-10-22

    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH

    Inventor： Ranjan Sen ,  Minati Chatterjee ,  Milan Kanti Naskar ,  Mrinmay Pal ,  Mukul Chandra Paul ,  Shyamal Kumar Bhadra ,  Kamal Dasgupta ,  Dibyendu Ganguli ,  Tarun Bandyopadhyay ,  Aharon Gedanken

    IPC: C03B037/075 ,  G02B006/00

    CPC classification number: B82Y30/00 ,  B82Y20/00 ,  C03B37/016 ,  C03B37/018 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  G02B6/02

    Abstract: The present invention discloses a process for making rare earth (RE) doped optical fibre by using RE oxide coated silica nanoparticles as the precursor materia, more particularly the method of the present invention involves preparation of stable dispersions (sol) of RE oxide coated silica nanoparticles at ambient temperature and applying a thin coating on the inner surface of silica glass tube following dip coating technique or any other conventional methods, of the said silica sol containing suitable dopants selected from Ge, Al, P, etc., the coated tubes were further processed into optical preforms by following MCVD technique and fiberised in desired configuration, the novelty lies in eliminating the step of the formation of porous soot layer at high temperature by CVD process inside a fused silica glass tube for formation of the core and also in the elemination of the incorporation of the rare earth ions into the porous soot layer following the solution doping technique or other conventional methods, the direct addition of RE oxides in the sol eliminates the formation of microcrystalites and clusters of rare earth ions and prevents change in composition including variation of RE concentration in the core which results in increase in the reproducibility and reliability of the process to a great extent, further the addition of Ge(OET)4 at ambient temperature in the silica sol reduces the quantity of GeCl4 which is required at high temperature to achieve the desired Numerical Aperture.

    Abstract translation: 本发明公开了一种通过使用RE氧化物涂覆的二氧化硅纳米颗粒作为前体材料制备稀土（RE）掺杂光纤的方法，更具体地说，本发明的方法包括制备RE氧化物涂覆的二氧化硅纳米粒子的稳定分散体（sol） 在环境温度下，在浸渍涂布技术或任何其它常规方法之后，在石英玻璃管的内表面上施加薄涂层，所述硅溶胶含有选自Ge，Al，P等的合适的掺杂剂，所述涂覆的管进一步 通过按照MCVD技术处理成光学预型件并在所需结构中纤维化，新颖性在于消除了在用于形成芯的熔融石英玻璃管内的CVD工艺在高温下形成多孔烟灰层的步骤，以及在电镀 根据溶液掺杂技术或其他配合将稀土离子掺入多孔烟灰层中 通常的方法中，在溶胶中直接添加RE氧化物消除了微晶体和稀土离子簇的形成，并且防止了组分中的变化，包括核心中RE浓度的变化，这导致过程的再现性和可靠性增加到 在很大程度上，进一步在硅溶胶中环境温度下添加Ge（OET）4会降低在高温下所需的GeCl 4的量以达到所需的数值孔径。

Patent Agency Ranking